Farm Equipment - 7020 A/C

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7020 A/C

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=160265
Printed Date: 18 Oct 2025 at 2:40am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 7020 A/C

Posted By: joe
Subject: 7020 A/C
Date Posted: 21 Apr 2019 at 9:04pm

I have a 7020 that the a/c isn't working on. The high line from the compressor to the condenser gets very hot and no cooling action takes place. I suspect that the TXV is plugged. I plan on replacing that and the R/D, as well as all o-rings.

It already has a Sanden compressor, and also has a temp switch on the outlet of the condenser. I would like to go to 2 pressure switches w/ the deicing switch. Is that an option. If I can do it without the spacer adapter, better yet.